edited by Michael D. Rose
West Publishing, 1996
Buku Teks SO
Williamson, J. Peter (John Peter)
Scott, Foresman, 1968
Buku Teks SO
Burke, Karen C., 1951-
West Publishing, 1996
Buku Teks SO
by Stanley S. Survey ... [and others]
Foundation Press, 1972
Buku Teks SO
Gumpel, Henry J.
Commerce Clearing House, 1969
Buku Teks SO